MESON Chess Problem Database

Problem Display
PID: 221508 (8/6N1/5k1b/3p4/8/B4K2/8/1B4Q1 w - - 0 1)

Schwann, Edward B

English Mechanic and World of Science, 1891

(First published on Fri Jun 19 1891)

8/6N1/5k1b/3p4/8/B4K2/8/1B4Q1

#2

5 + 3

236 The Field 1891
15239 Valois Notebooks 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qd4+?
      • 1...Kg5
        • 2.Bc1#
        • 2.Be7#
        • 2.Qf4#
      • 1...Kf7!
    • 1.Qa7?
      • threat
        • 2.Qe7#
      • 1...Kg5
        • 2.Be7#
        • 2.Qe7#
      • 1...Ke5!
  • Keys
    • 1.Qc5!
      • threat
        • 2.Qe7#
      • 1...Ke5
        • 2.Bb2#
      • 1...Kg5
        • 2.Qe7#
      • 1...Kf7
        • 2.Qf8#
      • 1...Kxg7
        • 2.Qf8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);CHECK
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(B);
      • Threat
        • QAB1(B)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(B);
    • Threat
      • QAB1(B)
    • Vars
      • K(b);P_SPINP(a),S_FLIGHT::B(C)
      • K(b);P_SPINP(a),S_FLIGHT::QAB(B)
      • K(b);P-FLIGHT::QAR1(B)
      • K(b);S_FLIGHT,XS(E)::QAB1(B)
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